Hello,
I have some issues with the implementation of a velocity in a source and in a sink with TELEMAC-3D V5P9.
I am using the following command to implemente a source and a sink in my model with a discharge of -40m3/s for the sink and +40 m3/s for the source with constant injection velocities at the sink and source:
/
/ SOURCES
/
ABSCISSAE OF SOURCES =454528.565;455561.693
ORDINATES OF SOURCES =2757554.400 ;2756963.085
ELEVATIONS OF SOURCES =-6;-3
WATER DISCHARGE OF SOURCES =-40;+40
VALUE OF THE TRACERS AT THE SOURCES=31;45;38;50
VELOCITIES OF THE SOURCES ALONG X=1.64;-1.64
VELOCITIES OF THE SOURCES ALONG Y=0.95;0.95
When the model run without the command 'VELOCITIES OF THE SOURCES ALONG X and Y' I got the result i expect (figure 1 ).C:\fakepath\SinkSource-novelocity.jpg
However when the command 'VELOCITIES OF THE SOURCES ALONG X and Y' is activate in the model, something I can't explain (strong current and opposite direction) appear at the sink.
C:\fakepath\SinkSource-velocity.jpg
So how should I implement the velocity properly at the sink (a kind of suction velocity)?
Ideally I'd like the default injection velocity at the sink (no momentum) and an injection velocity at the source of 1.8m/s (if I put 0 as an injection velocity for the sink, I got the same funny results), could someone advise me, the best way to proceed?
Thanks in advance for your help and regards,
Mathieu
C:\fakepath\SinkSource-novelocity.jpg